GHK-Cu is the copper peptide your body already makes, just less of it every year after age 30
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Before starting any peptide protocol, it is worth reading our guide on peptide therapy side effects, so you know exactly what to expect in the first weeks of treatment
Gastrointestinal effects lead: nausea, diarrhea, constipation, and vomiting, dose-dependent and clustered during escalation, mostly mild. Tirzepatide also produces a modest chronic heart-rate rise with a larger escalation-phase peak. Oral-contraceptive absorption can fall after starting and after each increase, so use backup or non-oral contraception for 4 weeks each time. What is known about concurrent metformin and tirzepatide use
This is the single most important thing you can do to prevent repeat injuries